add Potree (version 1.8)

PointCloudWeb.Web/public/Potree/libs/three.js/loaders/XYZLoader.js

@@ -0,0 +1,100 @@
+import {
+	BufferGeometry,
+	FileLoader,
+	Float32BufferAttribute,
+	Loader
+} from '../../../build/three.module.js';
+
+class XYZLoader extends Loader {
+
+	load( url, onLoad, onProgress, onError ) {
+
+		const scope = this;
+
+		const loader = new FileLoader( this.manager );
+		loader.setPath( this.path );
+		loader.setRequestHeader( this.requestHeader );
+		loader.setWithCredentials( this.withCredentials );
+		loader.load( url, function ( text ) {
+
+			try {
+
+				onLoad( scope.parse( text ) );
+
+			} catch ( e ) {
+
+				if ( onError ) {
+
+					onError( e );
+
+				} else {
+
+					console.error( e );
+
+				}
+
+				scope.manager.itemError( url );
+
+			}
+
+		}, onProgress, onError );
+
+	}
+
+	parse( text ) {
+
+		const lines = text.split( '\n' );
+
+		const vertices = [];
+		const colors = [];
+
+		for ( let line of lines ) {
+
+			line = line.trim();
+
+			if ( line.charAt( 0 ) === '#' ) continue; // skip comments
+
+			const lineValues = line.split( /\s+/ );
+
+			if ( lineValues.length === 3 ) {
+
+				// XYZ
+
+				vertices.push( parseFloat( lineValues[ 0 ] ) );
+				vertices.push( parseFloat( lineValues[ 1 ] ) );
+				vertices.push( parseFloat( lineValues[ 2 ] ) );
+
+			}
+
+			if ( lineValues.length === 6 ) {
+
+				// XYZRGB
+
+				vertices.push( parseFloat( lineValues[ 0 ] ) );
+				vertices.push( parseFloat( lineValues[ 1 ] ) );
+				vertices.push( parseFloat( lineValues[ 2 ] ) );
+
+				colors.push( parseFloat( lineValues[ 3 ] ) / 255 );
+				colors.push( parseFloat( lineValues[ 4 ] ) / 255 );
+				colors.push( parseFloat( lineValues[ 5 ] ) / 255 );
+
+			}
+
+		}
+
+		const geometry = new BufferGeometry();
+		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+		if ( colors.length > 0 ) {
+
+			geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		}
+
+		return geometry;
+
+	}
+
+}
+
+export { XYZLoader };